Settings doctrine page + streamlining (#156)

* Added a separate Doctrine page in settings with the following new options:
- Minimum number of aircraft for autoplanner to plan OCA packages against
- Airbase threat range (nmi)
- TARCAP threat buffer distance (nmi)
- AEW&C threat buffer distance (nmi)
- Theater tanker threat buffer distance (nmi)

Implemented handling for the OPFOR autoplanner aggressiveness in objectivefinder.py vulnerable_control_points().

* * Added three new options in Settings:
- Autoplanner plans refueling flights for Strike packages
- Autoplanner plans refueling flights for OCA packages
- Autoplanner plans refueling flights for DEAD packages

Fixed a bug in faction.py where F-16Ds were not correctly removed from the faction when the F-16I/F-16D mod was not selected.

* Renamed Maximum frontline length -> Maximum frontline width.

game/commander/objectivefinder.py

@@ -3,6 +3,7 @@ from __future__ import annotations
 import math
 import operator
 from collections.abc import Iterable, Iterator
+from random import randint
 from typing import TYPE_CHECKING, TypeVar
 
 from game.ato.closestairfields import ClosestAirfields, ObjectiveDistanceCache
@@ -33,10 +34,6 @@ MissionTargetType = TypeVar("MissionTargetType", bound=MissionTarget)
 class ObjectiveFinder:
     """Identifies potential objectives for the mission planner."""
 
-    # TODO: Merge into doctrine.
-    AIRFIELD_THREAT_RANGE = nautical_miles(150)
-    SAM_THREAT_RANGE = nautical_miles(100)
-
     def __init__(self, game: Game, is_player: bool) -> None:
         self.game = game
         self.is_player = is_player
@@ -151,9 +148,18 @@ class ObjectiveFinder:
                 # Off-map spawn locations don't need protection.
                 continue
             airfields_in_proximity = self.closest_airfields_to(cp)
+            airbase_threat_range = self.game.settings.airbase_threat_range
+            if (
+                not self.is_player
+                and randint(1, 100)
+                > self.game.settings.opfor_autoplanner_aggressiveness
+            ):
+                # Chance that the airfield threat range will be evaluated as zero,
+                # causing the OPFOR autoplanner to plan offensively
+                airbase_threat_range = 0
             airfields_in_threat_range = (
                 airfields_in_proximity.operational_airfields_within(
-                    self.AIRFIELD_THREAT_RANGE
+                    nautical_miles(airbase_threat_range)
                 )
             )
             for airfield in airfields_in_threat_range:

game/commander/tasks/primitive/dead.py

@@ -44,3 +44,5 @@ class PlanDead(PackagePlanningTask[IadsGroundObject]):
             self.propose_flight(FlightType.SEAD, 2)
         self.propose_flight(FlightType.SEAD_ESCORT, 2, EscortType.Sead)
         self.propose_flight(FlightType.ESCORT, 2, EscortType.AirToAir)
+        if self.target.control_point.coalition.game.settings.autoplan_tankers_for_dead:
+            self.propose_flight(FlightType.REFUELING, 1)

game/commander/tasks/primitive/oca.py

@@ -29,3 +29,5 @@ class PlanOcaStrike(PackagePlanningTask[ControlPoint]):
         if self.aircraft_cold_start:
             self.propose_flight(FlightType.OCA_AIRCRAFT, 2)
         self.propose_common_escorts()
+        if self.target.coalition.game.settings.autoplan_tankers_for_oca:
+            self.propose_flight(FlightType.REFUELING, 1)

game/commander/tasks/primitive/strike.py

@@ -24,3 +24,5 @@ class PlanStrike(PackagePlanningTask[TheaterGroundObject]):
         tgt_count = self.target.alive_unit_count
         self.propose_flight(FlightType.STRIKE, min(4, (tgt_count // 2) + 1))
         self.propose_common_escorts()
+        if self.target.coalition.game.settings.autoplan_tankers_for_strike:
+            self.propose_flight(FlightType.REFUELING, 1)

game/commander/theaterstate.py

@@ -173,7 +173,11 @@ class TheaterState(WorldState["TheaterState"]):
                 cp: BattlePositions.for_control_point(cp)
                 for cp in ordered_capturable_points
             },
-            oca_targets=list(finder.oca_targets(min_aircraft=20)),
+            oca_targets=list(
+                finder.oca_targets(
+                    min_aircraft=game.settings.oca_target_autoplanner_min_aircraft_count
+                )
+            ),
             strike_targets=list(finder.strike_targets()),
             enemy_barcaps=list(game.theater.control_points_for(not player)),
             threat_zones=game.threat_zone_for(not player),